garymortimer writes: "Emulating a 2009 drug smuggling attempt in the UK by toy helicopter criminals in Brazil have attempted to fly cellphones across the fence to inmates.

Perhaps this is not the first attempt, whoever made the craft made a neat job using cable tidies and laying out the platform in an ordered manner. The flight controller used appears to be a Chinese DJI NAZA this craft if GPS equipped could have been flown visually over the fence and then return to launch at the flick of a switch. But from the press photo the GPS appears to be missing, perhaps they will go for the upgrade now."